Retrospective pharmaceuticals process

Retrospective validation has become synonymous with achieving validation by documenting all the historical information (e.g., release data) for existing products and using that data to support the position that the process is under control. It was originally discussed in a public forum by Meyer [16] and Simms [17]. I also refer the reader to articles in the first edition of Pharmaceutical Process Validation [18]. 

Proving or demonstrating that the process works Prospective, concurrent, retrospective, revalidation Chemical, pharmaceutical, automation, cleaning Flow diagram, equipment/components, in-process, finished product... 

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